132 research outputs found

    Infección de localización quirúrgica en cirugía colorrectal: Efectividad de las medidas de prevención, factores de riesgo y mortalidad

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    Tesis doctoral inédita leída en la Universidad Autónoma de Madrid, Facultad de Medicina, Departamento de Cirugía. Fecha de lectura: 17-09-201

    SAGT: Aplicación informática para análisis de generalizabilidad

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    Se presenta un nuevo software para realizar análisis de generalizabilidad. Las características del mismo superan las limitaciones de programas anteriores (GENOVA, TG o EduG), tanto a nivel de tratamiento numérico como gráfico y en la importación/exportación de datos. El entorno del programa es más amigable. Para demostrar su eficacia se utiliza en el análisis de datos y valoración de resultados de un programa de intervención para la reducción de discriminación de género en las clases de educación física (EF). Se utiliza un diseño observacional y un diseño de generalizabilidad ortogonal con 6 facetas parcialmente anidado. El programa se desarrolla durante seis meses. La muestra está compuesta por 100 alumnos (51 chicas y 49 chicos) con edades comprendidas entre los 10 y los 12 años que cursaban 5º de Educación Primaria y se encontraban distribuidos en cuatro grupos. Los resultados del anàlisis de generalizabilidad señalan que la herramienta de observación es fiable, válida y precisa y que los observadores son altamente fiables (k = 0.73-0.81, G = 1). El ANOVA realizado señala que el programa de intervención ha sido eficaz. Además, se ha demostrado la eficacia y usabilidad del programa SAGT

    Au@Ag SERRS tags coupled to a lateral flow immunoassay for the sensitive detection of pneumolysin

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    Establishing a definitive diagnosis of pneumonia using conventional tests is difficult and expensive. Lateral flow immunoassays (LFIAs) are an advantageous point of care (POC) test option, but they have some limitations in terms of detection and quantification. In this work we have developed a lateral flow immunoassay for the ultrasensitive detection of penumolysin employing plasmonic Surface-Enhanced Resonance Raman Scattering (SERRS) tag as labelled probe. The combination of Au@Ag core-shell nanoparticles as plasmonic platform and Rhodamine B Isothiocyanate as Raman reporter has allowed us to fabricate a SERRS tag with high efficiency and reliability. The limit of quantification of the SERRS-based LFIA was 1pg/mL, while the limit of detection was 3.6 pg/mL. This could be a strong foundation for a pneumonia diagnosis test based on pneumolysin detectio

    Estimación de la erosión hídrica para el uso actual y erosión potencial del suelo en la finca agrícola experimental UNI, municipio “Las Flores”, departamento de Masaya

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    En el presente artículo se aborda el estudio Estimación de la erosión hídrica para el uso actual y erosión potencial del suelo en la finca experimental UNI utilizando la Ecuación revisada de la ecuación Universal de Pérdida de Suelo (RUSLE). El objetivo fue estimar la erosión hídrica para el uso actual y erosión potencial del suelo en la Finca Experimental de la UNI. La Finca tiene una extensión de 49.50 manzanas, utilizada para la realización de prácticas y con fines investigativos por parte de los estudiantes de la carrera de ingeniería agrícola. Se estimó la erosión hídrica superficial mediante el uso de la Ecuación Universal de Pérdida de Suelo Revisada (RUSLE). Para utilizar este modelo se obtuvieron los factores de erosividad, erodabilidad, la longitud y el gradiente de la pendiente, cobertura y prácticas de conservación. Para ello se realizaron una serie de actividades entre ellos la recopilación de datos de campos como el uso actual del suelo, topografía de la zona, precipitaciones diarias y mensuales y los respectivos análisis para la determinación de las propiedades físicas y químicas del suelo. El factor de erodabilidad (K) teórico se obtuvo a través de cuatro propiedades del suelo (Textura, estructura, materia orgánica y permeabilidad) dichos valores fueron introducidos en el nomograma de Wischmeier (1971). El estudio sugiere que en la Finca Agrícola Experimental de la Universidad Nacional de Ingeniería (FAE-UNI) se provoca tasas de erosión hídrica superficial menores que 12 Ton/ (ha-año)

    Endothelial Progenitor Cells: Relevant Players in the Vasculopathy and Lung Fibrosis Associated with the Presence of Interstitial Lung Disease in Systemic Sclerosis Patients

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    Endothelial progenitor cells (EPC), which are key effectors in the physiologic vascular network, have been described as relevant players in autoimmune diseases. We previously showed that EPC frequency may help to identify the presence of interstitial lung disease (ILD) in rheumatoid arthritis patients. Given that ILD constitutes the main cause of mortality in systemic sclerosis (SSc) patients, we aimed to determine the EPC contribution to the pathogenic processes of vasculopathy and lung fibrosis in SSc-ILD+. EPC quantification was performed by flow cytometry on blood from 83 individuals: 21 SSc-ILD+ patients and subjects from comparative groups (20 SSc-ILD- and 21 idiopathic pulmonary fibrosis (IPF) patients and 21 healthy controls (HC)). EPC were considered as CD34+, CD45low, CD309+, and CD133+. A significant increase in EPC frequency was found in SSc-ILD+ patients when compared to HC (p < 0.001). SSc-ILD+ patients exhibited a higher EPC frequency than SSc-ILD- patients (p = 0.012), whereas it was markedly reduced compared to IPF patients (p < 0.001). EPC frequency was higher in males (p = 0.04) and negatively correlated to SSc duration (p = 0.04) in SSc-ILD+ patients. Our results indicate a role of EPC in the processes of vasculopathy and lung fibrosis in SSc-ILD+. EPC frequency may be considered as a biomarker of ILD in SSc patients.V.P.-C. is supported by a pre-doctoral grant from IDIVAL [PREVAL 18/01]. S.R.-M. is supported by funds from the RETICS Program [RD16/0012/0009, Instituto de Salud Carlos III (ISCIII), co-funded by the European Regional Development Fund (ERDF)]. B.A.-M. is a recipient of a ‘López Albo’ Post-Residency Programme funded by Servicio Cántabro de Salud. L.L.-G. is supported by funds from INNVAL20/06 (IDIVAL). R.P.-F. is supported by funds from the START project [FOREUM18/34]. O.G. is staff personnel of Xunta de Galicia (Servizo Galego de Saude (SERGAS) through a research-staff stabilization contract (ISCIII/SERGAS), and his work is funded by ISCIII and the ERDF [grants RD16/0012/0014 (RIER) and PI17/00409]. He is a beneficiary of project funds from the Research Executive Agency (REA) of the European Union in the framework of MSCA-RISE Action of the H2020 Programme, project 734899—Olive-Net. R.L.-M. is a recipient of a Miguel Servet type I fellowship [ISCIII, co-funded by the European Social Fund, ‘Investing in your future’, CP16/00033]

    Role of the IL33 and IL1RL1 pathway in the pathogenesis of Immunoglobulin A vasculitis

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    Cytokines signalling pathway genes are crucial factors of the genetic network underlying the pathogenesis of Immunoglobulin-A vasculitis (IgAV), an inflammatory vascular condition. An influence of the interleukin (IL)33- IL1 receptor like (IL1RL)1 signalling pathway on the increased risk of several immune-mediated diseases has been described. Accordingly, we assessed whether the IL33-IL1RL1 pathway represents a novel genetic risk factor for IgAV. Three tag polymorphisms within IL33 (rs3939286, rs7025417 and rs7044343) and three within IL1RL1 (rs2310173, rs13015714 and rs2058660), that also were previously associated with several inflammatory diseases, were genotyped in 380 Caucasian IgAV patients and 845 matched healthy controls. No genotypes or alleles differences were observed between IgAV patients and controls when IL33 and IL1RL1 variants were analysed independently. Likewise, no statistically significant differences were found in IL33 or IL1RL1 genotype and allele frequencies when IgAV patients were stratified according to the age at disease onset or to the presence/absence of gastrointestinal (GI) or renal manifestations. Similar results were disclosed when IL33 and IL1RL1 haplotypes were compared between IgAV patients and controls and between IgAV patients stratified according to the clinical characteristics mentioned above. Our results suggest that the IL33-IL1RL1 signalling pathway does not contribute to the genetic network underlying IgAV.Acknowledgements: We are indebted to the patients and healthy controls for their essential collaboration to this study. We also thank the National DNA Bank Repository (Salamanca) for supplying part of the control samples. This study was supported by European Union FEDER funds and `Fondo de Investigaciones Sanitarias´ (Grant PI18/00042) from ‘Instituto de Salud Carlos III’ (ISCIII, Health Ministry, Spain). DP-P is a recipient of a Río Hortega programme fellowship from the ISCIII, co-funded by the European Social Fund (ESF, `Investing in your future´) (Grant Number CM20/00006). SR-M is supported by funds of the RETICS Program (RD16/0012/0009) (ISCIII, cofunded by the European Regional Development Fund (ERDF)). VP-C is supported by a pre-doctoral grant from IDIVAL (PREVAL 18/01). BA-M is a recipient of a `López Albo´ Post-Residency Programme funded by Servicio Cántabro de Salud. LL-G is supported by funds from IDIVAL (INNVAL20/06). OG is staff personnel of Xunta de Galicia (Servizo Galego de Saude (SERGAS)) through a research-staff stabilization contract (ISCIII/SERGAS) and his work is funded by ISCIII and the European Union FEDER fund (Grant Numbers RD16/0012/0014 (RIER) and PI17/00409). He is beneficiary of project funds from the Research Executive Agency (REA) of the European Union in the framework of MSCA-RISE Action of the H2020 Programme, project 734899—Olive-Net. RL-M is a recipient of a Miguel Servet type I programme fellowship from the ISCIII, co-funded by ESF (`Investing in your future´) (Grant Number CP16/00033)

    El taller en la formación de Trabajo Social como dispositivo para la reflexión sobre la práctica profesional : algunas aproximaciones desde el Departamento de Prácticas

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    El taller como dispositivo pedagógico tiene una presencia central en la formación profesional y en la problematización de la práctica que desarrollan los/as estudiantes y también de la intervención profesional en general. Es por ello que trabajamos fundamentalmente con el fin de identificar lineamientos generales teórico prácticos para los talleres de la práctica a partir de los resultados obtenidos en el Proyecto 2014. La idea es incorporar propuestas de los/as estudiantes y docentes tanto de contenido como de dinámicas.Fil: Parola, Ruth Noemí. Universidad Nacional de Cuyo. Facultad de Ciencias Políticas y SocialesFil: Pérez Chaca, María Valeria. Universidad Nacional de Cuyo. Facultad de Ciencias Políticas y SocialesFil: Blanco, María Teresita. Universidad Nacional de Cuyo. Facultad de Ciencias Políticas y SocialesFil: Mejías, Soledad. Universidad Nacional de Cuyo. Facultad de Ciencias Políticas y SocialesFil: Lígori, Paula. Universidad Nacional de Cuyo. Facultad de Ciencias Políticas y SocialesFil: Muñoz, Valeria. Universidad Nacional de Cuyo. Facultad de Ciencias Políticas y SocialesFil: Chiavetta, Valeria. Universidad Nacional de Cuyo. Facultad de Ciencias Políticas y SocialesFil: Montiano, María Elisa. Universidad Nacional de Cuyo. Facultad de Ciencias Políticas y SocialesFil: Jodar, María Belén. Universidad Nacional de Cuyo. Facultad de Ciencias Políticas y SocialesFil: Obón, Verónica Cecilia. Universidad Nacional de Cuyo. Facultad de Ciencias Políticas y SocialesFil: Ramírez, Ana Laura. Universidad Nacional de Cuyo. Facultad de Ciencias Políticas y Sociale

    HLA-DRB1 association with Henoch-Schonlein purpura

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    Objective: Henoch-Schönlein purpura (HSP) is the most common vasculitis in children but it is not exceptional in adults. Increased familial occurrence supports a genetic predisposition for HSP. In this context, an association with the human leukocyte antigen-HLA-DRB1*01 phenotype has been suggested in Caucasian individuals with HSP. However, data on the potential association of HSP with HLA-DRB1*01 were based on small case series. To further investigate this issue, we performed HLA-DRB1 genotyping of the largest series of HSP patients ever assessed for genetic studies in Caucasians. Methods: 342 Spanish patients diagnosed with HSP fulfilling the American College of Rheumatology and the Michel et al classification criteria, and 303 sex and ethnically matched controls were assessed. HLA-DRB1 alleles were determined using a PCR-Sequence-Specific-Oligonucleotide Probe (PCR-SSOP) method. Results: A statistically significant increase of HLA-DRB1*01 in HSP patients when compared with controls was found (43% vs 7%, respectively; p<0.001; odds ratio-OR=2.03 [1.43-2.87]). It was due to the increased frequency of HLA-DRB1*0103 phenotype in HSP (14% vs 2%; p<0.001; OR=8.27 [3.46-23.9]). These results remained statistically significant after adjusting for Bonferroni correction. In contrast, a statistically significant decreased frequency of the HLA-DRB1*0301 phenotype was observed in patients compared to controls (5.6% vs 18.1%, respectively; p<0.001, OR=0.26 [0.14-0.47]), even after adjustment for Bonferroni correction. No HLA-DRB1 association with specific features of the disease was found. Conclusion: Our study confirms an association of HSP with HLA-DRB1*01 in Caucasians. Also, a protective effect against the development of HSP appears to exist in Caucasians carrying the HLA-DRB1*03 phenotype
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